Linen tester



FIG. 1 is a perspective view of a linen tester showing our new design;

FIG. 2 is a top plan view of FIG. 1;

FIG. 3 is a bottom plan view of FIG. 1;

FIG. 4 is a right side elevational view of FIG. 1;

FIG. 5 is a left side elevational view of FIG. 1;

FIG. 6 is a first end elevational view of FIG. 1; and,

FIG. 7 is a second end elevational view of FIG. 1.

The dotted lines are intended to show features that are environmental only and form no part of the claimed design. 

The ornamental design for a linen tester, as shown and described. 